Child-humor cartographers and heads behind How To Be A Dad, Andy Herald and Charlie Capen, made co-sleeping official with their book The Guide to Baby Sleep Positions: Survival Tips for Co-Sleeping Parents. In it, we get 30 diagrams of possible nighttime positions you’ll find your baby in.

If you’re not already familiar with How To Be a Dad, just head on over there and check it out. It’s okay, we’ll wait.